Analytics BIOC Informational

SSO with new operating system

A user successfully authenticated via SSO with a new operating system.

Module:
Identity Analytics
Data source:
Okta, Azure SignIn Log, AzureAD, Duo
ATT&CK tactics: Initial Access (TA0001)
ATT&CK techniques: Valid Accounts: Domain Accounts (T1078.002)
Attacker's goals:

Use a legitimate user and authenticate via an SSO service to gain access to the network.

Investigative actions:

Confirm that the activity is benign (e.g. the user has really moved to a new operating system). Follow actions and suspicious activities regarding the user.

Test period:
N/A (single event)
Deduplication:
1 Day